Grinding device suitable for machining floating head type heat exchanger tube bundle tube plate

Abstract

The grinding device comprises a first base and a second base, first variable-speed rolling tires are installed on the left side and the right side of the surface of the first base correspondingly, and second rolling tires are installed on the left side and the right side of the surface of the second base correspondingly; the grinding machine frame is installed on the surface of the second base, the grinding device is arranged in the grinding machine frame, and the tube bundle tube plate body is arranged between the two first variable-speed rolling tires and the two second rolling tires. According to the grinding device suitable for machining the tube bundle tube plate of the floating head type heat exchanger, the first base with the two first rolling tires, the second base with the two second rolling tires and the grinding rack with the grinding device are matched for operation; a large-size tube bundle tube plate main body can be placed between the two first rolling tires and the two second rolling tires to be ground, and the large-size tube bundle tube plate main body can be conveniently machined.

Description

Technical Field

[0001] The invention relates to the field of heat exchanger processing, in particular to a grinding device suitable for processing tube bundle tube sheets of floating head heat exchangers. Background Art

[0002] Heat exchangers are common equipment in chemical, petroleum, steel, automobile, food and many other industrial sectors. They occupy an important position in petrochemical production. There are many types of heat exchangers, but according to the principles and methods of heat exchange between cold and hot fluids, they can be basically divided into three categories: partition type, mixed type and heat storage type. Among the three types of heat exchangers, partition type heat exchangers are the most widely used. In petrochemical equipment, floating head heat exchangers are the partition type heat exchangers with the largest proportion, the widest application, and the highest frequency of maintenance and replacement.

[0003] Floating head heat exchangers have a simple structure, can adapt to the environment more freely, and have greater interchangeability and maintainability during use. In petroleum refining and chemical production, corrosion, overpressure, equipment manufacturing quality and other reasons often cause heat exchanger tube bundle leakage, blockage, reduced heat exchange efficiency and other failures. In view of the continuity requirements of petrochemical production, tube bundles of the same or similar models are often found for replacement after a tube bundle fails. Some idle tube bundles are used as temporary replacements. Due to different manufacturing standards, different manufacturing precision, upgraded design standards and other reasons, the diameter of the movable tube sheet or fixed tube sheet is too large and needs to be processed and reduced.

[0004] Because it is used for emergency repair and replacement, the time is generally required to be as short as possible, and manufacturing, processing, and replacement are all carried out according to the repair requirements.

[0005] When large-sized heat exchanger tube bundles are transported as a whole to large professional processing manufacturers, the cost and time of transportation, loading and unloading, and processing all cause inconvenience to production.

[0006] Therefore, it is necessary to provide a grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles to solve the above technical problems. Summary of the invention

[0007] The present invention provides a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles, which solves the problem that the transportation of large-sized heat exchanger tube bundles as a whole to large-scale professional processing manufacturers causes inconvenience to production due to the transportation, loading and unloading, and processing costs and time.

[0008] In order to solve the above technical problems, the present invention provides a grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles, comprising:

[0009] A first base and a second base, wherein first speed-changing rollers are installed on both left and right sides of the surface of the first base, and second rollers are installed on both left and right sides of the surface of the second base;

[0010] A grinding frame, the grinding frame is mounted on the surface of the second base;

[0011] A grinding device, the grinding device is arranged inside the grinding frame, the grinding device comprises a first grinding belt transmission wheel and two second grinding belt transmission wheels, a grinding belt is connected between the first grinding belt transmission wheel and the two second grinding belt transmission wheels, a grinding belt wheel variable speed motor is installed on one side of the grinding frame, and one end of the output shaft of the grinding belt wheel variable speed motor is connected to one of the second grinding belt transmission wheels through a coupling;

[0012] The tube bundle tube sheet body is arranged between the two first speed-changing rollers and the two second rollers.

[0013] Preferably, both left and right sides of the inner wall of the grinding machine frame are provided with installation through grooves adapted to the two second grinding belt driving wheels.

[0014] Preferably, an anti-movement member is installed at a central position on one side of the second base surface.

[0015] Preferably, a support frame is installed between the first base and the second base, and collection components are provided on both left and right sides of the surface of the support frame.

[0016] Preferably, the collecting assembly comprises a collecting box, a positioning block is connected to the bottom of the collecting box, and a positioning groove matched with the positioning block is formed on the surface of the supporting frame.

[0017] Preferably, one end of the collection box is connected to a handle.

[0018] Preferably, an adjustment component is arranged between the first base and the second base, and the adjustment component includes a fixed seat, a fixed rod is connected to one side of the fixed seat, a movable sleeve is sleeved on the surface of the fixed rod, a rectangular block is connected to the surface of the movable sleeve, an adjustment rod is connected to one side of the rectangular block, and a fixing bolt is arranged between the movable sleeve and the fixed rod.

[0019] Preferably, one end of the fixing rod is connected to a stopper, one end of the adjusting rod is connected to a connecting seat, and the connecting seat is connected to the first base.

[0020] Preferably, a protective component is arranged between the first base and the second base, and the protective component includes two L-shaped fixing rods, the surfaces of the two L-shaped fixing rods are respectively provided with mounting sleeves, the two mounting sleeves are respectively connected to circular rods, and a warning line is connected between the two circular rods.

[0021] Preferably, a connecting bolt is provided inside the installation sleeve, a connecting hole matched with the connecting bolt is opened on the surface of the L-shaped fixing rod, and one end of the L-shaped fixing rod is connected to a limiting block.

[0022] Compared with the related art, the grinding device provided by the present invention, which is suitable for machining tube sheets of floating head heat exchanger tube bundles, has the following beneficial effects:

[0023] The present invention provides a grinding device suitable for processing a tube bundle tube sheet of a floating head heat exchanger. The first base with two first rollers, the second base with two second rollers, and the grinding frame with the grinding device cooperate to operate, so that a large-sized tube bundle tube sheet body can be placed between the two first rollers and the two second rollers for grinding, which plays a convenient role in processing the large-sized tube bundle tube sheet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a first embodiment of a grinding device suitable for machining tube sheets of a floating head heat exchanger tube bundle provided by the present invention;

[0025] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0026] Figure 3 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown;

[0027] Figure 4 A schematic structural diagram of a second embodiment of a grinding device suitable for machining tube sheets of a floating head heat exchanger tube bundle provided by the present invention;

[0028] Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown;

[0029] Figure 6 A schematic structural diagram of a third embodiment of a grinding device suitable for machining tube sheets of a floating head heat exchanger tube bundle provided by the present invention;

[0030] Figure 7 for Figure 6 An enlarged schematic diagram of part C is shown;

[0031] Figure 8 for Figure 6 An enlarged schematic diagram of the D portion shown;

[0032] Fig. 9 A schematic structural diagram of a fourth embodiment of a grinding device suitable for machining tube sheets of a floating head heat exchanger tube bundle provided by the present invention;

[0033] Fig.10for Fig. 9 An enlarged schematic diagram of part E is shown.

[0034] Numbers in the figure: 1, first base; 2, first speed roller; 3, second base; 4, second roller; 5, grinding frame;

[0035] 6. Grinding device; 61. First grinding belt transmission wheel; 62. Second grinding belt transmission wheel; 63. Grinding belt; 64. Variable speed motor for grinding belt wheel;

[0036] 7. Installation slot; 8. Anti-movement parts; 9. Tube bundle and tube sheet body; 10. Support frame;

[0037] 11. Collection assembly; 111. Collection box; 112. Positioning block; 113. Positioning groove;

[0038] 12. Handle;

[0039] 13. Adjustment assembly; 131. Fixed seat; 132. Fixed rod; 133. Movable sleeve; 134. Rectangular block; 135. Adjustment rod; 136. Fixed bolt;

[0040] 14. Connecting seat; 15. Stopper;

[0041] 16. Protection assembly; 161. L-shaped fixing rod; 162. Mounting sleeve; 163. Round rod; 164. Warning line; 165. Connecting bolt; 166. Connecting hole; 167. Limiting block. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0043] First embodiment

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of a grinding device suitable for machining tube sheets of a floating head heat exchanger tube bundle provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles comprises:

[0045] A first base 1 and a second base 3, wherein first speed-changing rollers 2 are installed on both left and right sides of the surface of the first base 1, and second rollers 4 are installed on both left and right sides of the surface of the second base 3;

[0046] A grinding frame 5, wherein the grinding frame 5 is mounted on the surface of the second base 3;

[0047] A grinding device 6, which is arranged inside the grinding frame 5, and includes a first grinding belt transmission wheel 61 and two second grinding belt transmission wheels 62, a grinding belt 63 is connected between the first grinding belt transmission wheel 61 and the two second grinding belt transmission wheels 62, a grinding belt wheel variable speed motor 64 is installed on one side of the grinding frame 5, and one end of the output shaft of the grinding belt wheel variable speed motor 64 is connected to one of the second grinding belt transmission wheels 62 through a coupling;

[0048] The tube bundle tube sheet body 9 is arranged between the two first speed-changing rollers 2 and the two second rollers 4 .

[0049] The left and right sides of the inner wall of the grinding frame 5 are both provided with mounting grooves 7 adapted to the two second grinding belt driving wheels 62 .

[0050] The first roller 2 and the second roller 4 are driven by a driving motor, the grinding frame 5 can be adjusted, the first grinding belt drive wheel 61 is installed at the center position of the top of the inner wall of the grinding frame 5, and the two second grinding belt drive wheels 62 are installed inside the two mounting grooves 7.

[0051] An anti-movement member 8 is installed at a central position on one side of the surface of the second base 3 .

[0052] Measure the data of tube plate grinding and select the appropriate length and mesh of the sanding belt.

[0053] Equipped with two sets of tube bundle supporting rollers suitable for the tube bundle, the rollers can achieve speed change and drive the tube bundle to rotate counterclockwise.

[0054] The tube bundle anti-movement member 8 is arranged to prevent the tube bundle from longitudinally moving during the rolling process.

[0055] Adjust the height of the grinding frame 5, adjust the tension of the abrasive belt, and set a suitable rotation speed.

[0056] The variable speed motor 64 of the grinding belt wheel is started to rotate the grinding belt 63 in the counterclockwise direction (the contact surfaces of the tube sheet are subjected to opposite contact grinding) to grind the grinding surface of the tube sheet.

[0057] Control the tire rolling speed, grinding speed, and belt tension. Check the grinding speed and quality.

[0058] After grinding, select a higher mesh abrasive belt for fine grinding and polishing according to the surface roughness requirements.

[0059] The working principle of a grinding device suitable for machining tube sheets of floating head heat exchangers provided by the present invention is as follows:

[0060] When in use, the tube bundle tube sheet body 9 is placed between two first rollers 2 and two second rollers 4, and the tube bundle fixed tube sheet at one end of the tube bundle tube sheet body 9 is in contact with the grinding belt 63, and then the grinding belt wheel variable speed motor 64 is started to drive one of the second grinding belt transmission wheels 62 to rotate. When one of the second grinding belt transmission wheels 62 rotates, the grinding belt 63 drives the other second grinding belt transmission wheel 62 and the first grinding belt transmission wheel 61 to rotate, so that the tube bundle fixed tube sheet at one end of the tube bundle tube sheet body 1 can be ground.

[0061] Compared with the related art, the grinding device provided by the present invention, which is suitable for machining tube sheets of floating head heat exchanger tube bundles, has the following beneficial effects:

[0062] The present invention provides a grinding device suitable for processing a tube bundle tube sheet of a floating head heat exchanger. The first base 1 with two first rollers 2, the second base 3 with two second rollers 4, and the grinding frame 5 with the grinding device 6 cooperate to operate, so that a large-sized tube bundle tube sheet body 9 can be placed between the two first rollers 2 and the two second rollers 4 for grinding operation, which plays a convenient role in processing the large-sized tube bundle tube sheet body 9.

[0063] Second embodiment

[0064] Please refer to Figure 4 and Figure 5 Based on the grinding device suitable for processing the tube sheet of a floating head heat exchanger provided in the first embodiment of the present application, the second embodiment of the present application proposes another grinding device suitable for processing the tube sheet of a floating head heat exchanger. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0065] Specifically, the second embodiment of the present application provides a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles, which is different in that a support frame 10 is installed between the first base 1 and the second base 3, and collection components 11 are provided on both sides of the surface of the support frame 10.

[0066] The collecting assembly 11 comprises a collecting box 111 . A positioning block 112 is connected to the bottom of the collecting box 111 . A positioning groove 113 adapted to the positioning block 112 is formed on the surface of the supporting frame 10 .

[0067] One end of the collection box 111 is connected to a handle 12 .

[0068] When cleaning the residue inside the collection box 111, the collection box 111 is pulled to move toward the outside of the support frame 10. When the collection box 111 moves, the positioning block 112 at the bottom is driven to move inside the positioning groove 113. When the collection box 111 is separated from the support frame 10, the residue inside the collection box 111 can be cleaned.

[0069] The working principle of a grinding device suitable for machining tube sheets of floating head heat exchangers provided by the present invention is as follows:

[0070] During use, the residue dropped when the tube bundle tube sheet body 9 is polished can be collected by the collection box 111 .

[0071] Compared with the related art, the grinding device provided by the present invention, which is suitable for machining tube sheets of floating head heat exchanger tube bundles, has the following beneficial effects:

[0072] The present invention provides a grinding device suitable for machining tube bundle sheets of floating head heat exchangers. A support frame 10 and two collecting assemblies 11 are arranged between a first base 1 and a second base 3 to collect the residues generated when grinding a tube bundle sheet body 9.

[0073] Third embodiment

[0074] Please refer to Figure 6 , Figure 7 and Figure 8 Based on the grinding device suitable for processing the tube sheet of a floating head heat exchanger provided in the first embodiment of the present application, the third embodiment of the present application proposes another grinding device suitable for processing the tube sheet of a floating head heat exchanger. The third embodiment is only a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0075] Specifically, the third embodiment of the present application provides a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles. The difference is that, in a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles, an adjustment component 13 is arranged between the first base 1 and the second base 3, and the adjustment component 13 includes a fixed seat 131, and a fixed rod 132 is connected to one side of the fixed seat 131. The surface of the fixed rod 132 is sleeved with a movable sleeve 133, and the surface of the movable sleeve 133 is connected to a rectangular block 134. One side of the rectangular block 134 is connected to an adjustment rod 135, and a fixing bolt 136 is arranged between the movable sleeve 133 and the fixed rod 132.

[0076] The fixing seat 131 is connected to the surface of the second base 3, and a fixing hole compatible with the fixing bolt 136 is opened on the surface of the fixing rod 132. The movable sleeve 133, the fixing rod 132 and the adjusting rod 135 can be used to adjust the distance between the first base 1 and the second base 3. A plurality of fixing holes compatible with the fixing bolt 136 are opened on the surface of the fixing rod 132.

[0077] One end of the fixing rod 132 is connected to a stopper 15 , and one end of the adjusting rod 135 is connected to a connecting seat 14 , and the connecting seat 14 is connected to the first base 1 .

[0078] The working principle of a grinding device suitable for machining tube sheets of floating head heat exchangers provided by the present invention is as follows:

[0079] When in use, when the distance between the first base 1 and the second base 3 is adjusted, the first base 1 with the two first rollers 2 is pulled to one side, and when the first base 1 moves, the adjusting rod 135 is driven to move through the connecting block 14, and when the adjusting rod 135 moves, the movable sleeve 133 is driven to move on the surface of the fixed rod 132 through the rectangular block 134. After the distance between the first base 1 and the second base 3 is adjusted, the fixing bolt 136 is used to pass through the movable sleeve 133 and connect with the fixing hole on the surface of the fixed rod 132.

[0080] Compared with the related art, the grinding device provided by the present invention, which is suitable for machining tube sheets of floating head heat exchanger tube bundles, has the following beneficial effects:

[0081] The present invention provides a grinding device suitable for processing tube sheets of a floating head heat exchanger. An adjustment component 13 is arranged between a first base 1 and a second base 3, which can adjust the size between the first base 1 with two first rollers 2 and the second base 3 with two second rollers 4 according to the size of a tube sheet body 9.

[0082] Fourth embodiment

[0083] Please refer to Fig. 9 and Fig.10 Based on the grinding device suitable for processing the tube sheet of a floating head heat exchanger provided in the first embodiment of the present application, the fourth embodiment of the present application proposes another grinding device suitable for processing the tube sheet of a floating head heat exchanger. The fourth embodiment is only a preferred embodiment of the first embodiment, and the implementation of the fourth embodiment will not affect the independent implementation of the first embodiment.

[0084] Specifically, the fourth embodiment of the present application provides a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles. The difference is that, in a grinding device suitable for processing tube sheets of floating head heat exchanger tube bundles, a protective component 16 is arranged between the first base 1 and the second base 3, and the protective component 16 includes two L-shaped fixing rods 161, and the surfaces of the two L-shaped fixing rods 161 are both provided with mounting sleeves 162, and the two mounting sleeves 162 are both connected to circular rods 163, and a warning line 164 is connected between the two circular rods 163.

[0085] The two L-shaped fixing rods 161 are symmetrically connected to the surfaces of the first base 1 and the second base 3. The use of the mounting sleeve 162 facilitates the installation and position adjustment of the circular rod 163. A circular block is connected to one side of the limit block 167, and a circular mounting hole matching the circular block is opened at one end of the L-shaped fixing rod 161. The limit block 167 and the circular mounting hole can be used to install and disassemble the L-shaped fixing rod 161. The use of the limit block 1657 can prevent the mounting sleeve 162 from falling off the L-shaped fixing rod 161.

[0086] A connecting bolt 165 is disposed inside the installation sleeve 162 , a connecting hole 166 matching the connecting bolt 165 is formed on the surface of the L-shaped fixing rod 161 , and one end of the L-shaped fixing rod 161 is connected to a limiting block 167 .

[0087] The working principle of a grinding device suitable for machining tube sheets of floating head heat exchangers provided by the present invention is as follows:

[0088] When in use, when the entire device is to be alerted, first, two installation sleeves 162 with round rods 163 are placed on the surface of the L-shaped fixing rod 161, and the position of the round rod 163 is adjusted. After the position of the round rod 163 is adjusted, use the connecting bolt 165 to pass through the installation sleeve 162 and connect it to the connecting hole 166 on the L-shaped fixing rod 161. After the round rod 163 is fixed, the warning line 164 is fixed between the two round rods 163.

[0089] Compared with the related art, the grinding device provided by the present invention, which is suitable for machining tube sheets of floating head heat exchanger tube bundles, has the following beneficial effects:

[0090] The present invention provides a grinding device suitable for machining tube bundle sheets of floating head heat exchangers. A protection assembly 16 is arranged between a first base 1 and a second base 3 to perform a warning operation during the grinding operation of a tube bundle sheet body 9 .

[0091] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles, characterized in that: include: A first base and a second base, wherein first speed-changing rollers are installed on both left and right sides of the surface of the first base, and second rollers are installed on both left and right sides of the surface of the second base; A grinding frame, the grinding frame is mounted on the surface of the second base; A grinding device, the grinding device is arranged inside the grinding frame, the grinding device comprises a first grinding belt transmission wheel and two second grinding belt transmission wheels, a grinding belt is connected between the first grinding belt transmission wheel and the two second grinding belt transmission wheels, a grinding belt wheel variable speed motor is installed on one side of the grinding frame, and one end of the output shaft of the grinding belt wheel variable speed motor is connected to one of the second grinding belt transmission wheels through a coupling; The tube bundle tube sheet body is arranged between the two first speed-changing rollers and the two second rollers.

2. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 1, characterized in that: The left and right sides of the inner wall of the grinding machine frame are both provided with installation through grooves adapted to the two second grinding belt driving wheels.

3. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 1, characterized in that: An anti-movement member is installed at a central position on one side of the second base surface.

4. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 1, characterized in that: A support frame is installed between the first base and the second base, and collection components are arranged on both left and right sides of the surface of the support frame.

5. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 4, characterized in that: The collecting assembly comprises a collecting box, a positioning block is connected to the bottom of the collecting box, and a positioning groove matched with the positioning block is formed on the surface of the supporting frame.

6. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 5, characterized in that: One end of the collection box is connected with a handle.

7. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 1, characterized in that: An adjustment component is arranged between the first base and the second base, and the adjustment component includes a fixed seat, a fixed rod is connected to one side of the fixed seat, a movable sleeve is sleeved on the surface of the fixed rod, a rectangular block is connected to the surface of the movable sleeve, an adjustment rod is connected to one side of the rectangular block, and a fixing bolt is arranged between the movable sleeve and the fixed rod.

8. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 7, characterized in that: One end of the fixing rod is connected to a stopper, one end of the adjusting rod is connected to a connecting seat, and the connecting seat is connected to the first base.

9. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 1, characterized in that: A protection component is arranged between the first base and the second base, and the protection component includes two L-shaped fixing rods, the surfaces of the two L-shaped fixing rods are both provided with mounting sleeves, the two mounting sleeves are both connected to circular rods, and a warning line is connected between the two circular rods.

10. The grinding device suitable for machining tube sheets of floating head heat exchanger tube bundles according to claim 9, characterized in that: A connecting bolt is arranged inside the installation sleeve, a connecting hole matched with the connecting bolt is opened on the surface of the L-shaped fixing rod, and one end of the L-shaped fixing rod is connected to a limiting block.

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